Judging by the way that he's dressed and the colour of his hair, fans are already speculating that he could be playing one of the key characters to the Game of Thrones plot.

After the Jon Snow revelation of Season 6, where Bran Stark realises that Jon's parents are Ned Stark's sister Lyanna and most likely Rhaegar Targaryen, we have been waiting to see who will play Rhaegar. Because Devin has silver hair in this shot, it is highly likely that he will play Rhaegar!